Gree FGR25Pd/DNa-X Service Manual page 20

(1) Press and hold the "FUNCTION" button for five seconds. The temperature area displays "C00".
Continuously press the "MODE" button for three times, and then press and hold the
"FUNCTION" button for five seconds to enter the engineering parameter setting interface. The
temperature area displays "P00".
(2) Select a parameter code by pressing " " or " ". Press the "MODE" button to switch to parameter
value settings. The parameter value blinks. Adjust the parameter value by pressing " " or " " and
then press the "ENTER/CANCEL" button to complete settings.
(3) Press the "ENTER/CANCEL" button to return to the upper-level menu till quitting parameter
settings.
In the engineering parameter setting interface, users can also set user parameters. The engineering
parameter setting list is as follows:
Parameter
Parameter Name
Code
Power-down
P15
memory mode
Historical fault
P17
clearing for IDU
Environment
temperature
P20
sensor settings
for IDU
Corrected value
of environment
temperature
P21 sensor of IDU (for
cooling,
dehumidifying,
and air supply)
Corrected value
of environment
temperature
P22 sensor of IDU (for
heating, fast
heating, and air
warming)
P32
Capacity
Duct type split Air conditioner Inverter Series
Parameter Range
00: standby after
power-down recovery
01: restoring the original
status after power-down
recovery
00: not cleared
01: cleared
01: temperature sensor
of air return vent
02: temperature sensor
of wired controller
03: temperature sensor
of air return vent for
cooling, dehumidifying,
and air supply;
temperature sensor of
wired controller for
heating
04: temperature sensor
of wired controller for
cooling, dehumidifying,
and air supply;
temperature sensor of
air return vent for
heating
-15 to +15
-15 to +15
-40% to +40%
18
Default Value
00
Historical faults of all IDUs controlled
00 by the current wired controller are
cleared.
When there are master and slave
wired controllers and the
temperature sensor of wired
controller is used, only the
temperature sensor of the master
wired controller is used by default.
Note:
1) In automatic mode, the
03
environment temperature sensor
settings are invalid for a common
IDU but the setting value is
memorized.
2)The environment temperature
sensor settings are invalid for a
fresh-air IDU. The temperature
sensor of air return vent is used by
default.
Temperature
sensor of unit:
Press "
0°C; temperature
by 1°C.
sensor of wired
controller: 0°C
Press "
by 1°C.
Temperature The temperature sensor of unit and
sensor of unit: the temperature sensor of wired
-2°C; controller share the same corrected
temperature value.
sensor of wired
In heating mode, corrected value of
controller: 0°C
temperature sensor of unit =
corrected value of temperature
sensor of wired controller - 2°C.
00
Press "
Remark
--
" or " " to add or reduce
" or " " to add or reduce
" or " " to add or reduce